baber/WOPTO huggingface dataset:
Patent GB-148922-A (GB)
Title: Improvements in or relating to machines for moulding concrete blocks
IPC: B28B7/00
Filed: 1920-07-10
Abstract: 148,922. Brissart, M. C. A. Jan. 16, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Moulds.-The L-shaped members A, B, constituting the mould are detachably connected together by angle-bars D<1>, D<2> fixed to the adjacent edges of the members and secured together by wedges E passing through pins D. The faces b<1>, b<2> of the member B are cut away at B<1>, B<2> to reduce weight, and the mould is reversible so as to produce right or left handed blocks. Flanges H, H' serve respectively to support the core M within the mould and the mould upon the ground. Fig. 8 shows a modification in which the mould members are secured together by pins r passing through lugs o, p, the pins being coupled by rod, s<1> fitted with operating levers s.
Patent GB-1000165-A (GB)
Title: Production of alpha-olefins
IPC: C07C1/32
Filed: 1963-05-24
Abstract: Alpha olefinic hydrocarbons are prepared by thermally decomposing sulphoxides of general formulae [R1C(R2R3)C(R4R5)]2SO or [R1C(R2R3)C(R4R5)]SOCH3 wherein R1 is hydrogen, a C1 to C30 alkyl group and R2, R3, R4 and R4 are hydrogen or alkyl groups, preferably methyl, provided that whenever either or both R4 and R5 is an alkyl group, then both R2 and R3 are alkyl groups, preferably methyl. Specified starting materials are di-n-butyl sulphoxide, di-n-hexyl sulphoxide, di-n-decyl sulphoxide and n-amyl-methyl sulphoxide. The decomposition is preferably carried out by heating in a stream of inert gas, e.g. nitrogen, to 100 DEG  to 300 DEG  C. in presence of a catalyst which is preferably basic, e.g. soda lime.  The decomposition may take place under reduced pressure.
Patent GB-300949-A (GB)
IPC: C08K5/00
Filed: 1928-07-18
Abstract: 300,949. Goodyear Tire & Rubber Co., (Assignees of Teppema, J.). Nov. 21, 1927, [Convention date]. Arylmercaptothiazole derivatives.-The reaction product of a mercaptoarylthiazole in which one or more of the hydrogen atoms of the aryl ring is replaced by a chlorine or nitrogen-containing radicle, and amines, aryl or aliphatic, is employed as an accelerator of vulcanization of rubber. A suitable compound is made by mixing solutions of 5-chlor-mercaptobenzothiazole, and diphenylguanidine in alcohol in equimolecular proportions, and crystallizing out a substance having a melting point of 174-175 C. Similarly 6-nitromercaptobenzothiazole, and 6-amino-mercaptobenzothiazole may be combined with diphenylguanidine to give products melting at 200 C. and 168 C. respectively. For the nitro compound, the addition of a larger proportion of diphenylguanidine is desirable. Dry diethylamine may be bubbled through a solution of 5- chlor-mercaptobenzothiazole in ether to form needles which melt at 142-143 C. Diethylamine may also be passed through a solution of 6-amino-mercaptobenzothiazole in aniline. Tables are given of times &c. of vulcanization, and the properties of the rubber so vulcanized. The Specification, as open to inspection under Sect. 91 (3) (a) includes the use of derivatives containing any substituent in the aryl ring. This subject-matter does not appear in the Specification as accepted.
Patent GB-273921-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F5/04
Filed: 1926-08-24
Abstract: 273,921. Lake, W. B., and Lake & Elliot, Ltd. Aug. 24, 1926. Lever-actuated pumps; regulating delivery by opening suction and delivery valves.-A hydraulic jack of the extended lift type has two or more telescopic plungers and a pump rod which is reciprocated to raise the load and is rotated to open a release valve to lower the load. Telescopic plungers 1, 2 carrying the crutch 44 are mounted in a plunger cylinder 3 forming part of a casing 4 containing an oil &c. reservoir 5 from which oil can be forced into the cylinder through a selfclosing valve 6. The pump cylinder 12 is mounted inside the casing and has a gland 28 carrying the pump rod 26 which is reciprocated by a hand-lever 59 pivoted on an extension 62 of the casing and connected to the pump rod by a pivoted link 57. The hand-lever has a pivotal connection 63 to the lever arm 58 and can be secured in either a vertical or inclined position to the lever arm by pin and socket connections 65, 67. In operation, oil from the reservoir passes through channels 35 into the pump cylinder and is forced by the pump rod past the valve 6 into the plunger cylinder so as to raise the plungers 1, 2. To lower the load, a handle 69 fitted to the link 57 is rotated. This rotates the pump rod and also a rod 22, Fig. 7, of angular cross-section fitting into a correspondingly shaped bore 25 in the pump rod. The rod 22 has at its other end a screw-thread 21 engaging a threaded sleeve 13 and the rod is thus moved longitudinally and pushes the valve 6 from its seating so that the oil can return from the plunger cylinder to the reservoir and the load is lowered. In a modification, the hand-lever 77, Fig. 9, has a bayonet joint 78 for connecting it to the lever arm 73 and a second bayonet joint 81 for connecting it to a sleeve 76 on the end of the pump-rod for rotating the pump rod.
Patent GB-736511-A (GB)
Title: Improvements relating to temperature-responsive control systems
IPC: G05D23/12
Filed: 1952-08-20
Abstract: 736,511. Gas-turbine plant. GENERAL MOTORS CORPORATION. Aug. 20, 1952 [Sept. 15, 1951], No. 20896/52. Class 110 (3). [Also in Group XXIX] A temperature-responsive control system for moving a gas-turbine fuel control member in response to temperature of a gaseous medium, e.g. air from the compressor inlet duct, comprises a fluid-pressure operated servomotor controlled by a thermo-sensitive device comprising a pair of parallel corrugated strips over which the gas flows. Two corrugated thermoresponsive strips 21, Fig. 5, are under tension between two resilient arches 24, 25, carried on a strap 26 and air from a compressor inlet duct 102 is directed by casing 101, port 104 and deflectors 106 over the strips to a port 103 leading to the compressor inlet so that as the strips vary in length the arches flex under the springs 33, 34. This turns an adjustable lever 50, shaft 51, cam lever 53, and cam follower lever 56, which positions a piston valve 62, Figs. 5, 6, within a ported piston rod 65 of a piston 66, so that the piston follows up the movement of the valve and moves a rod 94 of a gas turbine fuel controller. Specification 709,586, [Group XIII], is referred to.
Patent GB-800913-A (GB)
Title: Process of producing constructional material from flue dust
IPC: C04B18/08
Filed: 1956-07-05
Abstract: In a process for producing constructional material (e.g., aggregate for concrete) from flue dust by sintering it alone or admixed with fuel, the physical state of the products is adjusted by sintering pellets formed from the flue dust and by using a granule diameter of 1 to 6 mm. (preferably 1 to 4 mm) for producing a coherent cake, and 6 to 15 mm. (preferably 8 to 12 mm.) for producing individual spherical hard pellets.  The fuel admixture may be 10 per cent before sintering and the granules may be coated by being rolled in the powdered fuel.
Patent GB-1168762-A (GB)
Title: Improvements in or relating to Electrolytic Reduction Cells.
IPC: C25C3/08
Filed: 1968-05-02
Abstract: 1,168,762. Fused electrolyte cells. KAISER ALUMINUM/& CHEMICAL CORP. May 2, 1968 [May 17, 1967], No. 20939/68. Heading C7B. An electrolytic cell for producing aluminium comprises a supporting shell 12 open at top and bottom, a bottom plate 14 mounted within the shell for displacement by the build up of forces within the cell, and disposed within the shell a layer of thermal insulation 18 on the plate and a current conducting lining 20 e. g. of carbon on the insulation, current collector bars 22 being positioned in the lining and extending through the shell. Preferably, the plate 14 is slidably mounted on horizontal flanges 16 attached to the lower edge of the shell. The fused electrolyte 32 above the molten aluminium layer 28 is preferably a mixture of alumina and cryolite. One or more consumable pre-baked or self-baking carbon anodes 30 are used. With granulated insulation 18, the shell is sealed to prevent leaking around the bottom plate.
Patent GB-379061-A (GB)
Title: Improvements in and connected with building blocks
IPC: E04C1/39
Filed: 1931-07-22
Abstract: 379,061. Building blocks ; walls modified for door and window frames. WILKINSON, H. A. and WILKINSON, B., Sand. Pits, Guildford Road, Runfold, Farnham, Surrey. July 22, 1931, No. 20991. [Classes 20 (iii) and 87 (i).] Building blocks for use in forming door and window openings in walls have a part 2 shaped to provide two obtusely inclined outer faces and to bridge the cavity 3 of a hollow wall, and provide a ledge, against which the door or window frame 9 is bedded. The blocks may be provided with grouting recesses and may be of different lengths for bonding. Plaster or other surfacing 15 may be applied and dampproof material 6 may be applied at the meeting edge of wall parts.
Patent GB-846023-A (GB)
Title: Improvements in camming assemblies, more particularly for closures for pressure vessels
IPC: A47J27/08
Filed: 1957-07-03
Abstract: 846,023. Closures for resisting fluid pressure. VISCHER, A. July 3, 1957 [July 31, 1956], No. 21054/57. Class 123(1) [Also in Groups XXIV and XXV] In a pressure vessel closure, e.g. of the form described in Specification 521,673, .which consists of a flexible disc 18, for example of stainless steel, which is prestressed to a warped shape of elliptical projection allowing it to be inserted into the opening in a vessel 14 and which has an operating device whereby a pull can be exerted at the centre of the disc to cause it to assume an unwarped shape projecting a circular form with its outer edge 18a in sealing engagement with a gasket 16 held in an inturned lip 14a defining the rim of the opening, the operating device provides for an initial force to be exerted to move opposite edges of the warped cover into engagement with the gasket and then for a much greater force to flex the cover to its unwarped operative condition. The operating device consists of a camming assembly 20 which bears on a cross-brace 22 pivoted to the vessel supporting structure 11 at 26 and serving as a hinge support for the cover 18. The assembly 20 which is preferably made of a heat-resistant, plastic material, consists of an operating handle 20a provided with an initial effort camming surface 30. The second or high force applying portion of the assembly comprises a circular ring 32 which is rotatably journalled on needle rollers 36 on an inner race 34 supported in the arm 20a. The centre of the cover 18 is connected to a pin 64 passing through the arm 20a and inner race 34 by a U-shaped yoke 56 the arms of which pass through slots in the brace 22, a compression spring 61 being provided between the cover and the brace to force the brace to ride firmly on the camming assembly 20. In operation, to close the vessel, the disc 18 in its warped shape is passed through the opening as the brace 22 hinges to the position where it contacts a stop bracket 25. The handle 20a is now turned about the pin 64 to the position shown in Fig. 4, the cam surface 30 contacting the brace as the pin moves outwardly to seat opposite disc edges 18 on the gasket 16. Further rotation of the handle to the position shown in Fig. 5 flexes the disc 18 to its circular form, this rotation being facilitated in spite of the increased pull required as the ring 32 contacts the brace and the inner race 34 revolves in its frictionless bearing. When the vessel is pressurized the handle 20a is returned to the Fig. 4 position, the disc 18 being held in its circular sealing form by the pressure. In this way when the pressure operation, e.g. cooking or sterilizing is complete and the pressure is lowered almost to atmospheric the cover 18 will snap back to the warped shape notifying the operator that the vessel may be fully opened.
Patent GB-940056-A (GB)
Title: Determination of o
IPC: G01N23/09
Filed: 1962-05-31
Abstract: 940,056. Isotopic analysis by nuclear reactions. S. AMIEL, and A. NIR. May 31, 1962 [June 6, 1961], No. 21057/62. Heading G1A. The O<SP>18</SP> content of a sample is determined by bombarding the sample with α-particles and counting the neutrons emitted by the sample. The sample is placed or passed between a source of 4 to 9 MeV α-particles such as Po<SP>210</SP>, Ra<SP>226</SP> or Th<SP>228</SP> and a neutron detector. In this energy range the crosssection for the O<SP>18</SP>(α, n)Ne<SP>21</SP> reaction is large and interference from the (α, n) reactions of lithium, beryllium and fluorine and the like is negligible. The neutron detector count is proportional to the O<SP>18</SP> content.
Patent GB-257922-A (GB)
Title: Improvement in flying machines
IPC: B64C23/00
Filed: 1926-08-27
Abstract: 257,922. Aktiebolaget Aeria, (Assignees of Hallander, J. A.). Sept. 7, 1925, [Convention date]. Propeller guards.-Coaxial right and lefthanded propellers 11, 12 separated bv non-rotary guide-blades 13 are driven through bevel gearing 19, shafts 20 and differential gearing 21 in opposite directions.
Patent GB-396222-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B3/16
Filed: 1932-07-27
Abstract: 396,222. Brushes. BRITISH XYLONITE CO., Ltd., Hale End, Walthamstow, London, and SNELL, S. W., Sylvera, High Road, Woodford Green, Essex. July 27, 1932, No. 21159. [Class 19.] Bristles 10 of a brush are stapled or otherwise secured in a small ferrule 12 of celluloid or other moulded material, or metal, held in a resilient sheet, for example, a rubber sheet 11 secured to a handle 17. Each ferrule, with the bristles inserted, is sprung or forced into the sheet so that a conical head 15 projects inside and a flange 14 remains outside.
Patent GB-804711-A (GB)
Title: Improvements relating to electrical supply systems
Inventor: HOBBS EDWIN DANIEL
IPC: H02J7/26
Filed: 1954-07-20
Abstract: 804,711. Automatic voltage control systems for variable speed battery-charging generators; inductors. STONE & CO. (DEPTFORD), Ltd., J. Oct. 18, 1955 [July 20, 1954], No. 21176/54. Classes 38 (2) and 38 (4). [Also in Group XXXIX] In an automatic voltage control system for a generator in which the field current is derived by rectification of an A.C. supply, and the A.C. supply is controlled by a saturable reactor having a permanent magnet reference bias opposed by a control winding, the generator is made to supply a storage battery and the control winding is connected across the battery. The battery 2, Fig. 1, of a train lighting set is charged over a main rectifier 3 by an alternator 1 self-excited over rectifier 5 controlled by magnetic amplifier 6 to maintain constant battery voltage. The magnetic amplifier 6 consists of a pair of outer limbs 7, Fig. 4, which are saturated by a permanent magnet 9. The magnet 9 is shunted by high reluctance limbs 8 which include air gaps 10. The outer limbs 7 carry the main D.C. control winding 12 the m.m.f. of which opposes the permanent magnet 9, and also carry the A.C. windings 11 which are in series with rectifiers 21 to provide self-saturation which opposes the control winding 12. In a modification, Fig. 2 (not shown), the rectifiers 21 are omitted. A rise in battery voltage increases the current in winding 12, thereby reducing the total flux in limbs 7 and so increasing the impedance of winding 11. Positive feed-back may be provided by winding 22, Fig. 1, carrying the D.C. field current. It is stated that a further winding 14 may carry the alternator output current, the battery current or the lamp load current to provide a compound characteristic. In another modification, Fig. 5 (not shown), the main D.C. control winding 12 is divided into two parts, one part energized as above, and the other is energized from the A.C. output of the alternator through a choke and rectifier so as to compensate for frequency variations. In another modification, Fig. 3, the generator supplies electric lamps 18 in addition to charging the battery 2, the lamps being supplied through a series resistor 19 which is shorted out by a no-volt relay 19a, 19b when the generator is not operating. The voltage control winding of the generator regulator is connected to a tapping on the series resistor unless the main charging cut-out 17 is open, when the winding is transferred to the main rectifier to prevent over-voltage should the generator be operating but the cut-out stuck open. It is also stated that the main generator may be a D.C. machine with auxiliary A.C. windings or an A.C. exciter to supply the field.
Patent GB-578254-A (GB)
Title: Plant for supplying screened water
IPC: B01D33/00
Filed: 1944-10-31
Abstract: 578,254. Centrifugal strainers. BRACKETT & CO., Ltd., F. W. and DALBY, R. C. C. Oct. 31, 1944, No. 21239. [Class 23] Dirty water is supplied by an unchokeable pump 12 to the inside of a rotary strainer 10, upon which solids are deposited, to be removed by water jets 20 which wash them into a hopper 19. Clean water passes through the periphery 17 of the screen to a pipe 23. The screen is driven through gearing by a motor 22. The screen may be of double-cup form.
Patent GB-315279-A (GB)
Title: Improvements in or relating to compositions comprising cellulose derivatives and solvents for use therein
IPC: C08J3/09
Filed: 1929-07-10
Abstract: 315,279. British Celanese, Ltd., (Assignees of Moss, W. H.). July 10, 1928, [Convention date]. Compositions containing cellulose derivatives. -Solvents for cellulose acetate and other derivatives of cellulose comprise methylene chloride and an aliphatic or cyclic alcohol or an ether of an alcohol having a boiling point above 100‹ C. Such solvents may be used in making coating or plastic compositions containing cellulose derivatives, or for removing cellulose derivatives from surfaces coated therewith. Suitable alcohols or alcohol derivatives are n or isobutyl, and amyl alcohols, ethylene and diethylene glycols and their ethers, cyclohexanol and methyl cyclohexanol. The proportion of methylene chloride in the solvent may range from 40 to 90 per cent. Cellulose derivative compositions comprising solvents as described above may contain also other solvents or plasticizers such as ethyl lactate, diacetone, alcohol, tetrachlorethane, triacetin, diethyl phthalate, and dibutyl tartrate; they may contain also diluents such as benzene, natural or synthetic resins, dyes, pigments, &c., as desired. Four examples are given describing cellulose acetate compositions containing methylene chloride and (1) butyl alcohol, (2) ethylene glycol monoethyl ether, (3) ethylene glycol monoethyl ether, ethyl lactate, triacetin, and a pigment, and (4) cyclohexanol and benzyl alcohol. Specification 313,133 is disclaimed. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of propyl, isopropyl, and secondary and tertiary butyl alcohols. This subject-matter does not appear in the Specification as accepted.
Patent GB-300536-A (GB)
Title: Improvements in or relating to secondary batteries
IPC: H01M50/437
Filed: 1927-08-13
Abstract: 300,536. D. P. Battery Co., Ltd., and Waddell, J. Aug. 13, 1927. Separators.-The plates of an accumulator are wrapped in a strip of glass wool which encircles the two faces and two edges of each plate, the ends of the strip being lapped and the joint lying on one of the faces of the plate and preferably at the middle. Fig. 1 shows in plan plates d surrounded by glass wool strips a. Owing to the folding of the strips the ends b become chamfered. The chamfered ends are made to overlap on one of the faces of the plate and the wool is teazled to loosen the fibres and cause them to intermingle. The chamfering of the ends of the strip' may also be obtained by cutting the ends at an angle before folding. Additional separators e of perforated celluloid &c. may also be used.
Patent GB-1174520-A (GB)
Title: A Window.
IPC: E06B3/44
Filed: 1968-05-06
Abstract: 1,174,520. Pivotable sliding windows. CHUBB'S AUSTRALIAN CO. Ltd. 6 May, 1968 [4 May, 1967; 16 June, 1967], No. 21393/68. Heading E1J. A sliding sash window (balanced by weights 2 in the case shown) has a sash (or both sashes) 16, 17 which can be pivoted about a horizontal axis for cleaning &c. purposes, at its meeting edge 18 and to this end the extreme width from stile to stile of the sash is smaller than the internal distance between the jambs of the main frame, which have dove-tail section groove guiding tracks 11, in a front face plate of the jamb and the sash has a pair of sash supporting members at each end thereof mounted in the stiles, namely firstly runners 28 secured adjustably in the rail 18 to be directly engageable "in and disengageable from the groove 11 and secondly pegs 42, engageable in and disengageable from permanently slidably mounted' nylon block 44 mounted in the jamb track groove 11 (and secured to the balance weights 2 by cables 53) the sash being capable of sideways movement against spring 39 secured at its end 40 in a groove 20 of a stile and having therein an oval aperture 43, Fig. 1A, with an oval insert bush 48 such that normally when the bush has its longest axis vertical as is the axis of the aperture, a slit 49 from the aperture to the lower edge of the block, is closed and when the sash is turned about its axis through the pegs, the latter carry the bush with it and open up the slit 49 to increase the pressure on the sides of the track 1 to hold the sash in its vertical rotated position, the runners 28 being withdrawn by finger grips 29 to allow the rotation about the pegs 42 to take place. Sideways movement of the sash deflects spring 39 and withdraws pegs 42 from the bush and enables the sash to be withdrawn from the frame. Stays may maintain the rotatable sash in a desired angular position. The gap between sash and frame is closed by flexible weatherstrips 24.
Patent GB-185725-A (GB)
Title: A new or improved method of drying and solidifying articles of food
IPC: B01D1/18
Filed: 1922-08-04
Abstract: 185,725. Nishina, E. Aug. 4, 1922. Preserving milk, eggs, vegetables, meat, fish, &c.-In obtaining dry products from soy sauce, bean flour, sakÚ, solutions of salt or sugar, fruit juices, eggs, milk, vegetables, meat, fish, &c., the material reduced, if necessary, to a pasty condition, is passed from a tank 1 through an adjustable slotted outlet 3 and is forced by a jet of air or inert gas from nozzles 5 on to the surface of an endless travelling band 6 of absorbent material, such as felt, cotton fabric, &c. The band passes over a roller 8 surrounded by a suction chamber 9 and through a drying chamber which may be under reduced pressure. The dried material is removed by a scraper 10. The treatment may be effected in an atmosphere of carbon dioxide or other inert gas. Fruit juices, wines, &c. may be first distilled to obtain the volatile ingredients which are added to the dried residue.
Patent GB-887962-A (GB)
Title: Improvements in and relating to electrostatic printing
IPC: G03G15/04
Filed: 1960-06-17
Abstract: 887,962. Xerographic processes. AUSTRALIA, COMMONWEALTH OF. June 17, 1960 [June 19, 1959], No. 21430/60. Class 98(2). In xerographic printing an electrostatic image is reproduced on a photo conducting surface which is subsequently developed; the image area is surrounded, during at least the period between image formation and development, by a field of the same polarity as the electrostatic image to limit migration of electrons from the said image. This may be done by (a) charging the whole surface and only exposing the central portion, or (b) surrounding the picture area by a metal ring to which the desired potential is applied.